/* Some simple examples of constructing and calculating with times
* Output:
* 2002-Feb-01 00:00:00 - 2002-Feb-01 05:04:02.001000000 = -5:04:02.001000000
*/
#include "boost/date_time/posix_time/posix_time.hpp"
#include <iostream>
int
main()
{
	using namespace boost::posix_time;
	using namespace boost::gregorian;
	date d(2002,Feb,1); //an arbitrary date
	//construct a time by adding up some durations durations
	ptime t1(d, hours(5)+minutes(4)+seconds(2)+millisec(1));
	//construct a new time by subtracting some times
	ptime t2 = t1 - hours(5)- minutes(4)- seconds(2)- millisec(1);
	//construct a duration by taking the difference between times
	time_duration td = t2 - t1;
	std::cout << to_simple_string(t2) << " - "
	<< to_simple_string(t1) << " = "
	<< to_simple_string(td) << std::endl;
	return 0;
}